• The Imperial Berkey® System comes with 2, 4 or 6 Black Berkey^® Purification Elements,
• The versatile Imperial Berkey® System is the ideal system for use with mid to large-sized families, small groups and during unexpected emergencies
• Constructed with highly polished AISI stainless steel 
• Upper chamber nests within lower chamber for transport and for travel can be only 17″ or 43cm in height
• Storage capacity of about 4.5 gallons (17 liters)
• Height when in use: 26″ or 66cm
• Diameter: 10″ 25.4cm
• Weight: 10 lbs  4.54kg empty
• For normal everyday use, this system easily serves: 4-8 people
• Fully configured, using 6 filters this system can serve up to 200-400 people a day, during an emergency
• Maximum Filtration Flow Rate:
  • Configured with 6 Black Berkey^® Purification Elements, the Imperial Berkey^® System can produce up to 16.5 gallons (62.5 liters) of purified water per hour
• Up to 6 Berkey PF-2™ Fluoride and Arsenic Reduction Elements can be installed in the lower chamber if desired

Flow rate calculated with upper chamber full to top. Flow rate decreases as water level declines.